The gray veil

[ミறѳѳղղįզվદ彡]

I also installed and let it run.
Unfortunately, no effect.

then i think i cant help you if works for you only restart explorer.exe
i think you need fresh (Clean) install or you can try the last step sfc/ scannow
Use the System File Checker tool to repair missing or corrupted system files
If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. 

Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

Warning this step remove UltraUXTheme patcher if you have already installed
if you have UltraUXTheme patcher installed please uninstall it first before running sfc/ scannow
https://support.microsoft.com/en-us/help/929833/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system